Vikas-4
Type: Upper Stage Engine
Country of Origin: India
Manufacturer: Godrej & Boyce
First Flight:
Status: Active
Propellant (O/F): Nitrogen Tetroxide/Unsymmetrical Dimethylhydrazine
Mixture Ratio (O/F by mass): 1.86; 1.71 (4B)
Cycle: Gas Generator
Chambers: 1
Thrust (vac.): 725.0 kN; 804.5 kN (4B)
Thrust (s.l.):
Throttle: none
ISP (vac.): 295.9 s; 301.9 s (2B)
ISP (s.l.):
Chamber Pressure: 775 psi; 848 psi (4B)
Nozzle Ratio:
Burn time:
Ignitions: 1
Mass:
Length: 3.5 m; 3.75 m (4B)
Diameter: 1.5 m; 1.8 m (4B)
Used in: GSLV Mk.I, GSLV Mk.II, PSLV, GSLV Mk.III
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